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Please post your Battery Capacity

tigres

tigres

macrumors 601
Original poster
Aug 31, 2007
4,214
1,326
Land of the Free-Waiting for Term Limits
As the heading states, please post your battery capacity on your Gen 2 Air.

Just received mine on Thursday...


I have the following unfavorable results.

Capacity: 4789 mAh
94% Life
Original Capacity 5090 mAh
Battery loadcycles 11
Age of my Mac 2 Weeks....

Uh, am I correct in assuming that my capacity should be around 5200 mAh and that this is indeed a defective battery?

Please share with me if I am incorrect, as web browsing after a full recycle is about 2.25 hours, without doing anything else.

Thanks.
 
I

iPhonePhan

macrumors regular
Jun 26, 2007
173
0
Apple FanBoy Land
tigres said:
As the heading states, please post your battery capacity on your Gen 2 Air.

Just received mine on Thursday...


I have the following unfavorable results.

Capacity: 4789 mAh
94% Life
Original Capacity 5090 mAh
Battery loadcycles 11
Age of my Mac 2 Weeks....

Uh, am I correct in assuming that my capacity should be around 5200 mAh and that this is indeed a defective battery?

Please share with me if I am incorrect, as web browsing after a full recycle is about 2.25 hours, without doing anything else.

Thanks.
Click to expand...

How are you getting that information? I can't find original capacity in apps like iStat Pro. Lemme know and I'll share my findings since I've got a brand spankin' new MBAir :)
 
tigres

tigres

macrumors 601
Original poster
Aug 31, 2007
4,214
1,326
Land of the Free-Waiting for Term Limits
iPhonePhan said:
Thanks! Here's my battery stats:

Current Battery Capacity: 4743 mAh
Original Battery Capacity: 5090 mAh
93%
Battery-Loadcycles: 6
Age of your Mac: 2 Weeks
Click to expand...

How long does your battery last iPhonePhan?

Have you tested your battery with just surfing, and 50% display brightness to see if you can accomplish the 4-5 hours Apple says. I cannot get more than 2.5.

Am I missing something here?
 
Cynicalone

Cynicalone

macrumors 68040
Jul 9, 2008
3,212
0
Okie land
Here is mine. Interesting that it says my battery is 6 weeks old. I bought my Air on November 4th.
 

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  • CocoBattMBA2.jpg
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M

McGilli

macrumors 6502
Nov 11, 2008
380
0
Current Battery Capacity: 4872 mAh
Original Battery Capacity: 5090 mAh
95%
Battery-Loadcycles: 3
Age of your Mac: 2 Weeks
 
zer0tails

zer0tails

macrumors 65816
Mar 23, 2008
1,224
0
Canada
Current Battery Capacity: 4775 mAh
Original Battery Capacity: 5090 mAh
93%
Battery-Loadcycles: 3
Age of your Mac: 6 Weeks
 
S

sherthang

macrumors newbie
Jul 1, 2007
28
2
Responses from apple?

As I posted in another thread in this forum I was having terrible battery life as well with specs similar to those stated and a loss of 20% during overnight sleep. I did call apple and like others was referred to their battery savings tips. Unfortunately, no luck. I ended up returning the computer yesterday. Very unfortunate because otherwise I though it one of the best laptops I have owned from apple (screen, design, etc...you all have one, so you know the joys :) )
 
I

iPhonePhan

macrumors regular
Jun 26, 2007
173
0
Apple FanBoy Land
tigres said:
How long does your battery last iPhonePhan?

Have you tested your battery with just surfing, and 50% display brightness to see if you can accomplish the 4-5 hours Apple says. I cannot get more than 2.5.

Am I missing something here?
Click to expand...

I have yet to do such since I use my screen at full brightness even on battery power. I've gotten about 2.5h battery life with full brightness and standard web surfing, VPN, full keyboard lights on, and some iChat web video conferencing with folks across the pond ;)

I'm guessing if I try to be power conscious I could make it last alot longer but then again, that would defeat the purpose of my using my portable ;) I care to think that if I need power, I can simple walk over and charge it up again (albeit it would take 8 years to fully charge, j/k ;)
 
ntrigue

ntrigue

macrumors 68040
Jul 30, 2007
3,805
4
Something's fishy...

My Rev A

Current Battery Capacity: 4862 mAh
Original Battery Capacity: 5090 mAh
95%
Battery-Loadcycles: 66
Age of your Mac: 6 Months

Have you used System Profiler to verify? Could be something to do with the 10.5.5 build on Rev B.
 
tigres

tigres

macrumors 601
Original poster
Aug 31, 2007
4,214
1,326
Land of the Free-Waiting for Term Limits
ntrigue said:
My Rev A

Current Battery Capacity: 4862 mAh
Original Battery Capacity: 5090 mAh
95%
Battery-Loadcycles: 66
Age of your Mac: 6 Months

Have you used System Profiler to verify? Could be something to do with the 10.5.5 build on Rev B.
Click to expand...

Yeah,

System Profiler verifies the data. I am thinking my battery is crap, and I have news, if this is accurate... they can take this piece of 2500.00 right back.
 
S

stealthman1

macrumors regular
Oct 20, 2006
240
0
Ca
They didn't build scientifically precise measuring instruments into your MBA?
From the Apple website..."The battery has an internal microprocessor that provides an estimate of the amount of energy in the battery as it charges and discharges. The battery needs to be recalibrated from time to time to keep the onscreen battery time and percent display accurate." Apple routinely releases software tweaks to address battery charging issues. Hope this helps...I also noticed when I got my MBA that Bluetooth was on by default. Make sure you turn it off for better battery life.
Calibrating your MBA battery can be found here...
http://support.apple.com/kb/HT1490
 
M

mmacnama

macrumors newbie
Jun 30, 2008
16
0
current battery charge: 4891mAh
maximum battery charge: 4902mAh
99%

current battery capacity: 4902mAh
original battery capacity: 5090mAh
96%

additional info
battery-loadcycles: 128
age of your mac: 8 months

reasonably happy with that.
 
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